Self-assembly with block copolymers through metal coordination of SCS-PdII pincer complexes and pseudorotaxane formation

被引:49
作者
South, Clinton R. [1 ]
Higley, Mary Nell [1 ]
Leung, Ken C. -F. [1 ]
Lanari, Daniela [1 ]
Nelson, Alshakim [1 ]
Grubbs, Robert H. [1 ]
Stoddart, J. Fraser [1 ]
Weck, Marcus [1 ]
机构
[1] CALTECH, Arnold & Mabel Beckman Lab Chem Synth, 1200 E Calif Blvd, Pasadena, CA 91125 USA
关键词
copolymerization; crown compounds; palladium; pincer complexes; supramolecular; chemistry;
D O I
10.1002/chem.200501028
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Poly(norbornene)-based block copolymers containing side chains of palladated pincer complexes/dibenzo[24]crown-8 or palladated pincer complexes/dibenzylammonium salts were synthesized. Noncovalent functionalization was accomplished with their corresponding recognition units through simple 1:1 addition with association constants (K-a) greater than 10(5) m(-1). The self-assembly processes were monitored by using both H-1 NMR spectroscopy and isothermal titration calorimetry. In all cases, we found that the self-assembly of the recognition units along each polymer block does not preclude the self-assembly processes along the other block.
引用
收藏
页码:3789 / 3797
页数:9
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